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Studies on the osmotic and ionic regulation of the striped dogfish Poroderma africanum (Gmelin)

This thesis presents ideas, techniques, results and conclusions from a 3-year research project regarding the osmotic and ionic regulation of the South African striped dogfish Poroderma africanum (Gmelin). The experiments where devised early in 1971 but due to the time required for personally constru...

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Main Author: Haywood, Geoffrey Philip
Other Authors: Brown, Alec C
Format: Thesis
Language:English
Published: Department of Biological Sciences 2016
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access_status_str Open Access
author Haywood, Geoffrey Philip
author2 Brown, Alec C
author_browse Brown, Alec C
Haywood, Geoffrey Philip
author_facet Brown, Alec C
Haywood, Geoffrey Philip
author_sort Haywood, Geoffrey Philip
collection Thesis
description This thesis presents ideas, techniques, results and conclusions from a 3-year research project regarding the osmotic and ionic regulation of the South African striped dogfish Poroderma africanum (Gmelin). The experiments where devised early in 1971 but due to the time required for personally constructing equipment and facilities and for modifying and equipping the laboratory and aquaria with the necessary apparatus, actual experimentation and subsequent obtaining of results was not possible before November 1971. The main theme of the research was the investigation of the major body fluids and their relationship to external conditions, in a local elasmobranch species. The topic has been extensively examined in some overseas countries hut so far very little physiological work on the osmoregulation of marine elasmobranchs has been carried out in the South African region. The species chosen was also considered interesting in view of its common occurrence around the Cape (at the time of commencement of the work) and the fact that it seemed to be relatively limited in its distribution around the African coast, although in appearance it resembles the Scyliorhinid dogfishes widely distributed around overseas coasts.
format Thesis
id oai:open.uct.ac.za:11427/16466
institution University of Cape Town (South Africa)
language eng
last_indexed 2026-06-10T12:40:36.132Z
license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository
publishDate 2016
publishDateRange 2016
publishDateSort 2016
publisher Department of Biological Sciences
publisherStr Department of Biological Sciences
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source_str UCTD — University of Cape Town Open Access Repository
spelling oai:open.uct.ac.za:11427/16466 Studies on the osmotic and ionic regulation of the striped dogfish Poroderma africanum (Gmelin) Haywood, Geoffrey Philip Brown, Alec C Zoology This thesis presents ideas, techniques, results and conclusions from a 3-year research project regarding the osmotic and ionic regulation of the South African striped dogfish Poroderma africanum (Gmelin). The experiments where devised early in 1971 but due to the time required for personally constructing equipment and facilities and for modifying and equipping the laboratory and aquaria with the necessary apparatus, actual experimentation and subsequent obtaining of results was not possible before November 1971. The main theme of the research was the investigation of the major body fluids and their relationship to external conditions, in a local elasmobranch species. The topic has been extensively examined in some overseas countries hut so far very little physiological work on the osmoregulation of marine elasmobranchs has been carried out in the South African region. The species chosen was also considered interesting in view of its common occurrence around the Cape (at the time of commencement of the work) and the fact that it seemed to be relatively limited in its distribution around the African coast, although in appearance it resembles the Scyliorhinid dogfishes widely distributed around overseas coasts. 2016-01-20T12:52:45Z 2016-01-20T12:52:45Z 1974 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/16466 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town
spellingShingle Zoology
Haywood, Geoffrey Philip
Studies on the osmotic and ionic regulation of the striped dogfish Poroderma africanum (Gmelin)
thesis_degree_str Doctoral
title Studies on the osmotic and ionic regulation of the striped dogfish Poroderma africanum (Gmelin)
title_full Studies on the osmotic and ionic regulation of the striped dogfish Poroderma africanum (Gmelin)
title_fullStr Studies on the osmotic and ionic regulation of the striped dogfish Poroderma africanum (Gmelin)
title_full_unstemmed Studies on the osmotic and ionic regulation of the striped dogfish Poroderma africanum (Gmelin)
title_short Studies on the osmotic and ionic regulation of the striped dogfish Poroderma africanum (Gmelin)
title_sort studies on the osmotic and ionic regulation of the striped dogfish poroderma africanum gmelin
topic Zoology
url http://hdl.handle.net/11427/16466
work_keys_str_mv AT haywoodgeoffreyphilip studiesontheosmoticandionicregulationofthestripeddogfishporodermaafricanumgmelin